Let's dive into this simplified scenario:
interface Pup {
name: string;
age: number;
}
const puppy: Pup = {
name: 'Rex',
age: 3,
};
The goal here is to establish a reactive link for each attribute within the puppy object.
The usual method involves creating separate references like so:
const nameRef = ref(puppy.name);
const ageRef = ref(puppy.age);
Yet, this process seems repetitive. Are there any alternative approaches that are more universal and uphold type safety?
Utilize the reactive() function for Vue.js reactivity. Reference: https://vuejs.org/api/reactivity-core.html#reactive
const puppy = reactive({
name: 'Snoop',
age: 2,
});
// Access properties like,
console.log(puppy.name);
Typing
Documentation: https://vuejs.org/guide/typescript/composition-api.html#typing-reactive
The type of properties with reactive() is inferred automatically,
const puppy = reactive({
name: 'Snoop',
age: 2,
});
// puppy.name is inferred as a string
Alternatively, you can explicitly define the type as follows:
interface Dog {
name: string;
age: number;
}
const puppy: Dog = reactive({
name: 'Snoop',
age: 2,
});
Utilize the built-in function toRefs
interface Dog {
name: string;
age: number;
}
const puppy: Dog = {
name: 'Snoop',
age: 2,
};
import {toRefs} from 'vue'
const puppyRefs = toRefs(puppy)
// const puppyRefs: ToRefs<Dog>
type Pure<T>={[K in keyof T]: T[K]}
type PuppyRefs = Pure<typeof puppyRefs>
// type PuppyRefs = {
// name: Ref<string>;
// age: Ref<number>;
}
Not an expert in Vue, but have you considered manually creating the reactivity?
<script setup lang="ts">
import { ref, Ref } from 'vue'
function createReactiveRefs<T>(obj: T): { [K in keyof T]: Ref<T[K]> } {
const reactiveRefs: any = {};
for (const key in obj) {
reactiveRefs[key] = ref(obj[key]);
}
return reactiveRefs;
}
interface Dog {
name: string;
age: number;
}
const puppy: Dog = {
name: 'Snoop',
age: 2,
};
const reactivePuppy = createReactiveRefs(puppy);
</script>
<template>
{{ reactivePuppy.name.value }}
</template>
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